X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=diff.h;h=7150b90385952373f4fd49eb073d819541cc306d;hb=b6c4a480b3161effaa3578df91d8cdc83044d7b6;hp=24df9089cc024ec01f79102ceb429353f1707404;hpb=be3cfa85f45e32722a65349d023667be906a66b6;p=git.git diff --git a/diff.h b/diff.h index 24df9089..7150b903 100644 --- a/diff.h +++ b/diff.h @@ -4,28 +4,173 @@ #ifndef DIFF_H #define DIFF_H -/* These two are for backward compatibility with show-diff; - * new users should not use them. - */ -extern void show_differences(const struct cache_entry *ce, int reverse); -extern void show_diff_empty(const struct cache_entry *ce, int reverse); - -struct diff_spec { - union { - const char *name; /* path on the filesystem */ - unsigned char sha1[20]; /* blob object ID */ - } u; - unsigned short mode; /* file mode */ - unsigned sha1_valid : 1; /* if true, use u.sha1 and trust mode. - * (however with a NULL SHA1, read them - * from the file!). - * if false, use u.name and read mode from - * the filesystem. - */ - unsigned file_valid : 1; /* if false the file does not even exist */ +#include "tree-walk.h" + +struct rev_info; +struct diff_options; + +typedef void (*change_fn_t)(struct diff_options *options, + unsigned old_mode, unsigned new_mode, + const unsigned char *old_sha1, + const unsigned char *new_sha1, + const char *base, const char *path); + +typedef void (*add_remove_fn_t)(struct diff_options *options, + int addremove, unsigned mode, + const unsigned char *sha1, + const char *base, const char *path); + +struct diff_options { + const char *filter; + const char *orderfile; + const char *pickaxe; + unsigned recursive:1, + with_raw:1, + with_stat:1, + tree_in_recursive:1, + full_index:1, + silent_on_remove:1, + find_copies_harder:1; + int break_opt; + int detect_rename; + int line_termination; + int output_format; + int pickaxe_opts; + int rename_score; + int reverse_diff; + int rename_limit; + int setup; + int abbrev; + + int nr_paths; + const char **paths; + int *pathlens; + change_fn_t change; + add_remove_fn_t add_remove; }; -extern void run_external_diff(const char *name, - struct diff_spec *, struct diff_spec *); +extern void diff_tree_setup_paths(const char **paths, struct diff_options *); +extern void diff_tree_release_paths(struct diff_options *); +extern int diff_tree(struct tree_desc *t1, struct tree_desc *t2, + const char *base, struct diff_options *opt); +extern int diff_tree_sha1(const unsigned char *old, const unsigned char *new, + const char *base, struct diff_options *opt); + +struct combine_diff_path { + struct combine_diff_path *next; + int len; + char *path; + unsigned int mode; + unsigned char sha1[20]; + struct combine_diff_parent { + char status; + unsigned int mode; + unsigned char sha1[20]; + } parent[FLEX_ARRAY]; +}; +#define combine_diff_path_size(n, l) \ + (sizeof(struct combine_diff_path) + \ + sizeof(struct combine_diff_parent) * (n) + (l) + 1) + +extern void show_combined_diff(struct combine_diff_path *elem, int num_parent, + int dense, struct rev_info *); + +extern void diff_tree_combined_merge(const unsigned char *sha1, int, struct rev_info *); + +extern void diff_addremove(struct diff_options *, + int addremove, + unsigned mode, + const unsigned char *sha1, + const char *base, + const char *path); + +extern void diff_change(struct diff_options *, + unsigned mode1, unsigned mode2, + const unsigned char *sha1, + const unsigned char *sha2, + const char *base, const char *path); + +extern void diff_unmerge(struct diff_options *, + const char *path); + +extern int diff_scoreopt_parse(const char *opt); + +#define DIFF_SETUP_REVERSE 1 +#define DIFF_SETUP_USE_CACHE 2 +#define DIFF_SETUP_USE_SIZE_CACHE 4 + +extern int git_diff_config(const char *var, const char *value); +extern void diff_setup(struct diff_options *); +extern int diff_opt_parse(struct diff_options *, const char **, int); +extern int diff_setup_done(struct diff_options *); + +#define DIFF_DETECT_RENAME 1 +#define DIFF_DETECT_COPY 2 + +#define DIFF_PICKAXE_ALL 1 +#define DIFF_PICKAXE_REGEX 2 + +extern void diffcore_std(struct diff_options *); + +extern void diffcore_std_no_resolve(struct diff_options *); + +#define COMMON_DIFF_OPTIONS_HELP \ +"\ncommon diff options:\n" \ +" -z output diff-raw with lines terminated with NUL.\n" \ +" -p output patch format.\n" \ +" -u synonym for -p.\n" \ +" --patch-with-raw\n" \ +" output both a patch and the diff-raw format.\n" \ +" --stat show diffstat instead of patch.\n" \ +" --patch-with-stat\n" \ +" output a patch and prepend its diffstat.\n" \ +" --name-only show only names of changed files.\n" \ +" --name-status show names and status of changed files.\n" \ +" --full-index show full object name on index lines.\n" \ +" --abbrev= abbreviate object names in diff-tree header and diff-raw.\n" \ +" -R swap input file pairs.\n" \ +" -B detect complete rewrites.\n" \ +" -M detect renames.\n" \ +" -C detect copies.\n" \ +" --find-copies-harder\n" \ +" try unchanged files as candidate for copy detection.\n" \ +" -l limit rename attempts up to paths.\n" \ +" -O reorder diffs according to the .\n" \ +" -S find filepair whose only one side contains the string.\n" \ +" --pickaxe-all\n" \ +" show all files diff when -S is used and hit is found.\n" + +extern int diff_queue_is_empty(void); + +#define DIFF_FORMAT_RAW 1 +#define DIFF_FORMAT_PATCH 2 +#define DIFF_FORMAT_NO_OUTPUT 3 +#define DIFF_FORMAT_NAME 4 +#define DIFF_FORMAT_NAME_STATUS 5 +#define DIFF_FORMAT_DIFFSTAT 6 + +extern void diff_flush(struct diff_options*); + +/* diff-raw status letters */ +#define DIFF_STATUS_ADDED 'A' +#define DIFF_STATUS_COPIED 'C' +#define DIFF_STATUS_DELETED 'D' +#define DIFF_STATUS_MODIFIED 'M' +#define DIFF_STATUS_RENAMED 'R' +#define DIFF_STATUS_TYPE_CHANGED 'T' +#define DIFF_STATUS_UNKNOWN 'X' +#define DIFF_STATUS_UNMERGED 'U' + +/* these are not diff-raw status letters proper, but used by + * diffcore-filter insn to specify additional restrictions. + */ +#define DIFF_STATUS_FILTER_AON '*' +#define DIFF_STATUS_FILTER_BROKEN 'B' + +extern const char *diff_unique_abbrev(const unsigned char *, int); + +extern int run_diff_files(struct rev_info *revs, int silent_on_removed); + +extern int run_diff_index(struct rev_info *revs, int cached); #endif /* DIFF_H */